2542766 has 4 divisors (see below), whose sum is σ = 3814152. Its totient is φ = 1271382.

The previous prime is 2542759. The next prime is 2542817. The reversal of 2542766 is 6672452.

It is a semiprime because it is the product of two primes.

It is a d-powerful number, because it can be written as 2¹¹ + 5⁹ + 4⁷ + 2¹⁹ + 7² + 6³ + 6⁶ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 635690 + ... + 635693.

It is an arithmetic number, because the mean of its divisors is an integer number (953538).

2^2542766 is an apocalyptic number.

2542766 is a deficient number, since it is larger than the sum of its proper divisors (1271386).

2542766 is a wasteful number, since it uses less digits than its factorization.

2542766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271385.

The product of its digits is 20160, while the sum is 32.

The square root of 2542766 is about 1594.6052803123. The cubic root of 2542766 is about 136.4904079812.

The spelling of 2542766 in words is "two million, five hundred forty-two thousand, seven hundred sixty-six".